document.write( "Question 82982This question is from textbook introductory algebra
\n" ); document.write( ": one grocery clerk can stock a shelf in 20min whereas a second clerk reguires 30min to stock the same shelf. how long would it take to stock the shelf if two clerks worked together? \n" ); document.write( "

Algebra.Com's Answer #59594 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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one grocery clerk can stock a shelf in 20min whereas a second clerk requires 30min to stock the same shelf. how long would it take to stock the shelf if two clerks worked together?
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\n" ); document.write( "Let x = time required if both worked together:
\n" ); document.write( "Let the completed job = 1
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\n" ); document.write( " $\"x%2F20%29\"$ + $\"x%2F30\"$ = 1
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\n" ); document.write( "Multiply equation by 60 and you have:
\n" ); document.write( "3x + 2x = 60
\n" ); document.write( "5x = 60
\n" ); document.write( "x = 60/5
\n" ); document.write( "x = 12 minutes, work together
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\n" ); document.write( "Check solution
\n" ); document.write( "12/20 + 12/30 =
\n" ); document.write( "6/10 + 4/10 = 1
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